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Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN: 9781259696527
Author: J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher: McGraw-Hill Education
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Calculate the internal energy and enthalpy changes that occur when air is changed from an initial state of 277 K and 10 bar, where its molar volume is 2.28 m3 kmol-1 to a final state of 333 K and 1 atm. Assume for air that PV/T is constant and that CV = 21 and CP = 29.3 kJ/mol-1 K-1 .
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- For chemical Engineers. The specific volume of wet steam at 500 kpa is 0.2813 m3/kg. using the data from steam tables, determine the quality of steamarrow_forwardGive a specific example of a system with the energy transformation shown. In the question, W is the work done on the system, and K, U, and Eth are the kinetic, potential, and thermal energies of the system, respectively. Any energy not mentioned in the transformation is assumed to remain constant; if work is not mentioned, it is assumed to be zero. W → ΔEtharrow_forwardIn this problem we will consider compression of a liquid sample. For practical purposes liquids can be considered incompressible. (a) Evaluate AG when pressure acting on 100 mm³ of mercury is increased by 1000 bar at constant T. (b) To evaluate q for this process we will need to use Maxwell relations. Starting from the differential of S in terms of differentials of T and p show that TdS = CpdT - aTVdp. Hence, show that the energy transferred as heat when the pressure on an incompressible liquid or solid is increased by Ap at constant T is equal to -aTVAp. Evaluate q for the compression process in (a) at T = 273 K (a = 273 K (a = 1.82 × 10−4 K−¹).arrow_forward
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